2117935 has 4 divisors (see below), whose sum is σ = 2541528. Its totient is φ = 1694344.

The previous prime is 2117903. The next prime is 2117953. The reversal of 2117935 is 5397112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2117935 - 2⁵ = 2117903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211789 + ... + 211798.

It is an arithmetic number, because the mean of its divisors is an integer number (635382).

2^2117935 is an apocalyptic number.

2117935 is a deficient number, since it is larger than the sum of its proper divisors (423593).

2117935 is an equidigital number, since it uses as much as digits as its factorization.

2117935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423592.

The product of its digits is 1890, while the sum is 28.

The square root of 2117935 is about 1455.3126811789. The cubic root of 2117935 is about 128.4214420896.

It can be divided in two parts, 21 and 17935, that added together give a square (17956 = 134²).

The spelling of 2117935 in words is "two million, one hundred seventeen thousand, nine hundred thirty-five".